About GDEX

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The Geoscience Data Exchange (GDEX) is managed by the Information Systems Division (ISD) of the Computational and Information Systems Laboratory (CISL) at the National Center for Atmospheric Research (NCAR). Software engineering is performed by the Software Applications and Gateway Engineering (SAGE) Section. Data stewardship is performed by the Digital Asset Services Hub (DASH) team. GDEX contains a diverse collection of Earth System Sciences datasets.

Mission Statement

The Geoscience Data Exchange (GDEX) mission is to provide data preservation and FAIR, public access to data and other digital research assets related to the Earth and its atmosphere, oceans, and space environment. GDEX fulfills federal and scientific publication requirements for open data access by:

This mission intentionally supports and aligns with those of NCAR and its sponsor, the National Science Foundation (NSF).

Collection Scope

GDEX provides persistent data archiving and distribution for data collections from the National Center for Atmospheric Research (NCAR), the University Corporation for Atmospheric Research (UCAR) Community Programs (UCP), and projects funded by the NSF Geoscience Directorate.

User Support

For general inquiries and data support, please send us a message at gdex@ucar.edu.


GDEX was developed at NCAR by the Software Applications and Gateway Engineering (SAGE) team with guidance from the NCAR Data Stewardship Engineering Team (DSET), whose key goal is to promote the openness of NCAR research output.

Please contact us with feedback or problems at gdex@ucar.edu.